DA9271.005
13 July 2006
MAS9271
IC FOR 10.00 – 40.00 MHz PXO
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DESCRIPTION
The MAS9271 is an integrated circuit well suited to
make initial offset trimming of the crystal in
oscillator. The trimming is done by a serial bus and
the calibration information is stored in an internal
PROM.
To build a Precision Crystal Oscillator (PXO) only
one additional component, a crystal is needed.
Low Power
Wide Supply Voltage Range
CMOS (Square Wave) Output
Very High Level of Integration
Electrically Trimmable
Very Low Phase Noise
Low Cost
FEATURES
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Very small size
Minimum current draw
Wide operating temperature range
Phase noise <-130 dBc/Hz at 1 kHz offset
Square wave output
APPLICATIONS
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PXO for data terminals
PXO for telecommunication applications
PXO for computer application
BLOCK DIAGRAM
PD
MAS9271
OUT
DA
CLK
PV
VDD
Digital
3
5
VSS
X1
X'Tal
X2
1 (5)
MAS [ MICRO ANALOG SYSTEMS ]
